The Simpson MIU3.56/11 Face-Mount I-Joist Hanger from Simpson is built for commercial and high-load engineered wood framing where a dependable, no-stiffener connection is essential. Designed to support I-joist members with an actual size of 3-1/2 in. x 11-1/4 in. to 11-7/8 in., this face-mount hanger delivers a strong, code-ready connection without the added labor of web stiffeners. Its positive-angle nailing geometry makes it a practical choice for crews working on demanding structural framing projects.

Key Features

• Positive-angle nailing (PAN) design - minimizes splitting of the I-joist flanges while allowing nailing from a more accessible angle, saving time on the job site
• No web stiffeners required - engineered specifically for high-load I-joist applications without this extra step, reducing material costs and installation complexity
• Fits actual joist sizes from 3-1/2 in. x 11-1/4 in. to 11-7/8 in. - accommodates the real-world dimensional range of engineered wood I-joists used in commercial framing
• 16-gauge steel construction - provides the structural rigidity needed for heavy-load face-mount hanger applications
• G90 zinc galvanized finish - adds a corrosion-resistant coating that helps extend the service life of the connection in demanding environments
• Cannot be field-modified - ensures the hanger is used as manufactured, preserving its structural integrity and load ratings for compliant installations

Why This Product

• Designed for high-load commercial I-joist framing - the MIU series addresses demanding structural applications where standard hangers may fall short, giving builders a purpose-built solution for engineered wood systems
• Faster installation without added hardware - eliminating the need for web stiffeners and featuring positive-angle nailing means crews spend less time per connection, which adds up significantly across large framing projects
• Corrosion resistance built in from the factory - the G90 zinc galvanized coating provides a durable layer of protection, making this hanger a sound long-term choice for structural connections in moisture-prone or treated-lumber environments
• Trusted brand, domestic production - manufactured by Simpson, a widely recognized name in structural connectors, this hanger is produced in the United States and paired with clearly specified fastener requirements for straightforward, code-consistent installation

Specifications

• MPN: MIU3.56/11
• Member Size: 3-1/2 in. x 11-1/4 in. to 11-7/8 in.
• Width: 3-9/16 in.
• Height: 11-1/8 in.
• Seat Depth: 2-1/2 in.
• Gauge: 16
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What size engineered wood joist is the MIU3.56/11 designed to support?

The MIU3.56/11 is designed to support engineered wood I-joists with an actual member size of 3-1/2 in. x 11-1/4 in. to 11-7/8 in.

Does the MIU3.56/11 require web stiffeners during installation?

No. The MIU series hangers are specifically designed for commercial and high-load I-joist applications without requiring web stiffeners, simplifying the installation process.

What fasteners should be used to install the MIU3.56/11?

Install with 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails. Always use all specified fasteners to ensure a proper and code-compliant connection.

Can the MIU3.56/11 hanger be field-modified to fit a different application?

No. These hangers cannot be modified. Use the hanger as manufactured to maintain its structural integrity and load ratings.

Note: Product dimensions may differ from picture. Please refer to the specifications listed above for exact dimensions.